That is good that your home is seldom unattended. I would pay attention to who is scoping you out when you drive by. Be aware they may be casing for an invasion with you at home. I would consider the silent alarms as a quick early warning system. I would also make sure I had a weapon available in the shop/garage. If you are being watched and they are going to invade when you are there its better to be prepared. I know a lot of people may think it all sounds extreme but living rural means that the police are not likely close and you need to be prepared. Early warning could be your friend. I have dogs and thy are worth the weight for early warning.
Buying another gun is something I've been considering for a while now and you make a very good point about me being caught over at my garage without my gun. It doesn't take much to imagine how things might have turned out if the guy had been armed. My wife and I were both caught totally off guard and that scares the heII out of me. It will not happen again.